To protect circuits against excessive transient voltage, a ____ is used.
A. fuse
B. crowbar
C. varistor
D. circuit breaker
Answer: C
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A paving contractor computes the number of square feet (area) to be paved. The area which surrounds the building shown is to be paved. What is the number of square feet of pavement required?
Area of square = Side2; (A = s2)
Fill in the blank(s) with the appropriate word(s).
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In the FCAW-S process, agents for degassing the weld are contained in the _____
a. protective slag b. electrode metal c. flux d. nozzle
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Ineffective heat transfer can result in __________.
A. poor indoor air quality B. poor outdoor air quality C. reduced power consumption D. increased atmospheric pressure
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All employees at all job sites do not need to be trained in fire protection procedures and response.